11247099979 has 2 divisors, whose sum is σ = 11247099980. Its totient is φ = 11247099978.

The previous prime is 11247099977. The next prime is 11247100003. The reversal of 11247099979 is 97999074211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11247099979 - 2¹ = 11247099977 is a prime.

Together with 11247099977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11247099971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5623549989 + 5623549990.

It is an arithmetic number, because the mean of its divisors is an integer number (5623549990).

Almost surely, 2^11247099979 is an apocalyptic number.

11247099979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11247099979 is an equidigital number, since it uses as much as digits as its factorization.

11247099979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2571912, while the sum is 58.

The spelling of 11247099979 in words is "eleven billion, two hundred forty-seven million, ninety-nine thousand, nine hundred seventy-nine".